build: Fix cube.cpp build issues for Wayland
build: Fix cube.cpp build issues for Wayland

Fixes #1190

Change-Id: Iefb03b803b049a1634ae2075178afbd3dee691bd

KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools,KhronosGroup/Vulkan-Tools